东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (6): 890-893.DOI: -

• 论著 • 上一篇    下一篇

尾矿坝漫顶溃坝事故树分析

魏勇;许开立;郑欣;   

  1. 东北大学资源与土木工程学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-06-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家科技支撑计划项目(2006BAK04B01)

Fault tree analysis of tailing dam break due to overtopping

Wei, Yong (1); Xu, Kai-Li (1); Zheng, Xin (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-06-15 Published:2013-06-20
  • Contact: Wei, Y.
  • About author:-
  • Supported by:
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摘要： 根据汛期尾矿坝溃坝的一些典型事例,概括出了导致尾矿坝漫顶溃坝的基本事件.应用事故树分析中的最小割集、最小径集及结构重要度,对尾矿坝漫顶溃坝事故进行了研究.结果表明:导致尾矿坝漫顶溃坝的最小割集合有54个,说明尾矿坝漫顶溃坝容易发生;防止尾矿坝漫顶溃坝的最小径集合有4个;通过计算基本事件的结构重要度表明,存在坝体隐患、坝体设计不当、坝体施工差、未作日常维护、地质条件差等都是控制尾矿坝漫顶溃坝事故发生的关键.

关键词: 尾矿坝, 漫顶, 溃坝, 事故树, 基本事件

Abstract: Based on several typical cases of tailing dam break during flood periods, the basic events relevant to the accidents of tailing dam break due to overtopping were clarified and generalized, such as seismic intensity beyond the designed value and ineffective flood discharging measures taken. The accidents of tailing dam break due to overtopping were studied introducing fault tree analysis including minimum cut sets, minimum path sets and structural importance. The results showed that the number of minimum cut sets that causes the accidents of tailing dam break due to overtopping is 54, thus revealing that such accidents are easy to take place; the number of minimum path sets that implies the prevention of such accidents is 4; and the calculated structural importance of relevant basic events means that hidden danger, poor design and inferior construction of dam, lack of routine maintenance and poor geological conditions, etc, all are crucial to the control and prevention of such accidents especially during flood periods.

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